package com.itheima.reggie.service.impl;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.conditions.update.LambdaUpdateWrapper;
import com.baomidou.mybatisplus.core.toolkit.Wrappers;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.itheima.reggie.common.CustomException;
import com.itheima.reggie.entity.Category;
import com.itheima.reggie.entity.Dish;
import com.itheima.reggie.entity.Setmeal;
import com.itheima.reggie.mapper.CategoryMapper;
import com.itheima.reggie.service.CategoryService;
import com.itheima.reggie.service.DishService;
import com.itheima.reggie.service.SetmealService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.web.bind.annotation.GetMapping;

import java.util.List;

@Service
public class CategoryServiceImpl extends ServiceImpl<CategoryMapper, Category> implements CategoryService {

    @Autowired
    private DishService dishService;

    @Autowired
    private SetmealService setmealService;



    @Override
    public void delete(Long id) {
        //根据id查询type
        Category byId = getById(id);
        Integer type = byId.getType();

        if (type == 1) {
            //添加查询条件，根据分类id进行查询菜品数据
            LambdaUpdateWrapper<Dish> dishlqw = new LambdaUpdateWrapper<>();
            dishlqw.eq(Dish::getCategoryId, id);
            int count = dishService.count(dishlqw);
            if (count > 0) {
                throw new CustomException("分类中关联菜品，不能删除");
            }
            //删除分类
            removeById(id);
            return;
        }

        if (type == 2) {
            //查询当前分类是否关联了套餐，如果已经关联，抛出一个业务异常
            LambdaQueryWrapper<Setmeal> setmeallqw = Wrappers.<Setmeal>lambdaQuery();
            setmeallqw.eq(Setmeal::getCategoryId, id);
            int count1 = setmealService.count(setmeallqw);
            if (count1 > 0) {
                throw new CustomException("分类中关联套餐，不能删除");
            }
            //删除分类
            removeById(id);
            return;
        }

        /*//添加查询条件，根据分类id进行查询菜品数据
        LambdaUpdateWrapper<Dish> dishlqw = new LambdaUpdateWrapper<>();
        dishlqw.eq(Dish::getCategoryId, id);
        int count = dishService.count(dishlqw);
        if (count > 0) {
            throw new CustomException("分类中关联菜品，不能删除");
        }

        //查询当前分类是否关联了套餐，如果已经关联，抛出一个业务异常
        LambdaQueryWrapper<Setmeal> setmeallqw = Wrappers.<Setmeal>lambdaQuery();
        setmeallqw.eq(Setmeal::getCategoryId, id);
        int count1 = setmealService.count(setmeallqw);

        if (count1 > 0) {
            throw new CustomException("分类中关联套餐，不能删除");
        }

        //删除分类
        removeById(id);*/
    }



}
